cbcvebase.
CVE-2026-7567
published 2026-05-01

CVE-2026-7567: The Temporary Login plugin for WordPress is vulnerable to Authentication Bypass in versions up to and including 1.0.0. This is due to improper input validation…

PriorityP182critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EXPLOIT
EPSS
9.25%
94.7th percentile
The Temporary Login plugin for WordPress is vulnerable to Authentication Bypass in versions up to and including 1.0.0. This is due to improper input validation in the maybe_login_temporary_user() function, which fails to verify that the 'temp-login-token' GET parameter is a scalar string before processing it. When the parameter is supplied as an array, PHP's empty() check is bypassed and sanitize_key() returns an empty string, which is then passed as the meta_value to get_users(). WordPress ignores an empty meta_value and returns all users matching the meta_key '_temporary_login_token', allowing authentication without a valid token. This makes it possible for unauthenticated attackers to authenticate as any active temporary login user by sending a single crafted GET request.

Affected

1 ranges
VendorProductVersion rangeFixed in
elemntortemporary_login<= 1.0.0—

Detection & IOCsextracted from sources · hover to see the quote

urlwp-admin/?temp-login-token[]↗
  • →Detect GET requests where the 'temp-login-token' parameter is supplied as an array (i.e., 'temp-login-token[]') rather than a scalar string — this is the core bypass mechanism. ↗
  • →Alert on unauthenticated GET requests to wp-admin/ containing the query string pattern 'temp-login-token[]' (array notation), which triggers the authentication bypass. ↗
  • →Monitor for successful WordPress authentication sessions (presence of wp-settings-time cookie) immediately following a request containing 'temp-login-token[]' with no prior valid credential submission. ↗
  • →Inspect WordPress user meta queries: an empty meta_value passed to get_users() against meta_key '_temporary_login_token' indicates exploitation — all matching temporary users are returned. ↗
  • →Flag single-request authentication events (no login form POST) to wp-admin/ from unauthenticated sessions, particularly where allow_redirects follows through to a logged-in state. ↗
  • ·The bypass only works if at least one active temporary login user exists on the target WordPress site — exploitation requires the Temporary Login plugin to be installed, active, and have provisioned temporary users. ↗
  • ·The vulnerability affects only versions up to and including 1.0.0 of the Temporary Login plugin; patched versions are not susceptible. ↗
  • ·The authenticated role obtained is that of the temporary user, not necessarily a full administrator — privilege level depends on the role assigned to the temporary login account. ↗
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